Bobbin-winding machine



Nav. 1o, 1925. 1,560,523

` F. ASHWORTH BOBBIN WINDING MACHINE Filed April 19, 1919' Mlfzess lnelfm @Mmm WW y@ im M Patented Nov. 10, 1925.

UNITED STATES PATENT oEFlcE.

FRED ASHWORTH, OF BEVERLY, MASSACI-ITISETTS, ASSIGNOR TO UNITED SHOE MA-CHINERY CORPORATION, 0F FATERSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

BOBBIN-WINDING MACHINE.

Application led April 19, 1919. i Serial No. 291,268.

To all whom t may concern.'

Be it known that I, FRED AsHwoRTH, a citizen of the United States,residing at Beverly, in the county of Essex and State of Massachusetts,have invented certain new and useful Improvements in BobbinWVinde ingMachines; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make use the same.

This invention relates to `bobbin lwinding machines and, moreparticularly, to machines for winding the bobbins of sewing machineshuttles.

The object of the invention is to improve the construction and mode ofoperation of machines for winding the bobbins of sewing machinesshuttles, and to produce a machine of simple and compact construction bywhich such bobbins may be quickly and efficiently wound.

IVith this object in view the features of 4the invention consist incertain novel and improved constructions, arrangements and combinationsof parts hereinafter ldescribed and particularly pointed out in theclaims, the advantages of which will be readily understood andappreciated by those skilled in the art.

The invention is illustrated in the accompanying drawings in itspreferred form, and will be readily understood from the drawings takenin connection with the following detailed description of theconstructions therein shown.

In the drawings Figure 1r is a view partly in plan and partly inhorizontal section of a machine embodying the invention; and Fig. 2 is aview in side elevation of the machine.

'Ihe machine illustrated in the drawing is provided with a bobbinsupporting spindle 2 secured in a cylindrical boss 4 mounted on a rotarydisk 6. The disk 6 .is secured to one end of a shaft 8 mounted to rotatein a bearing in a bushing 10 secured in the frame of the machineindicated at V12. The disk 6 constitutes the driven member of a frictionclutch, the driving member of which consists of a pulley 14 mounted torotate on one end of the bushing 10 which projects beyond the frame, asclearly shown in Fig. 1, said pulley being adapted to receive a suitabledriving belt as indicated at 16. The driving pulley, as illustrated, isprovided with a ring 18 of rubber or other suitable friction materialembedded therein and arranged. to engage the adjacent face of the disk6.` To enable the driven disk 6 and the driving pulley 14 tobe movedrelatively into and out of driving engagement, theshaft 8 which carriesthe disk is mounted for longitudinal movement as well as rotary movementin the bushing 10. y

During the winding operation the driven disk 6 is held yieldingly inengagement with the driving pulley, and when a predetermined amount ofthread has been wound on the bobbin, the disk is moved axially to theleft (Fig. 1) to disengage the disk from the driving pulley. The devicesfor holding the disk in contact with the driving pulley also act to holdthe bobbin in position on the spindle 2. In the constructionillustrated, a rotary button 2O is mounted on a stud 22 journaled in anarm 24 and is adapted to engage the outer end of a bobbin 26 placed Yonthe winding spindle 2. The arm 24 is pivoted on a stud 28 mounted in ablock 30 and said arm is acted upon by a spring 32 which tends to swingthe outer end of the arm 24 to the right. Through the action of thespring 32 the button 2O is forced against the outer end of the bobbin tohold the bobbin on the spindle 2, and the driven disk 6 is forcedagainst the driving pulley 14.

vThe construction of the spring 32 is clearly 30 is pivote'd to turnfreely on a rock shaft 36 mounted in a bearing in an arm 38 on a frame.

`In placing a bobbiny on the 4spindle 2 and starting the machine. thearm 24 is swung about the shaft 36 out of operating position,

trally, the button being located so that it will project slightly intothe central bore in the bobbin and thus be held from displacement. Viththe arm 24 thus positioned, the driven disk 6 will be yieldingly held bythe spring 32 in driving contact withthe driving pulley 14, and will befrictionally drive-n therefrom.

The devices for disengaging the driven disk 6 from the driving pulley 14are normally held in inoperative positions and are controlled from thethread as it is wound on the bobbin so as to be thrown into operationwhen the bobbin contains a predetermined amount of thread. These deviceswhen thrown into operation will act to move the driven disk 6 and the.parts connected therewith to the left against the tension of the spring32 to disengage the disk from the driving pulley.

The devices for disengaging the driven disk from the ldriving pulleycomprise a cam fia-nge 40 projecting outwardly from the boss 4, and aroll 42 mounted on one arm of a lever 44 and arranged to engage the camflange. The lever 44 is secured to the rock shaft 36 so that the roll 42may be moved into and out of the path of the cam flange 40 by turningthe rock shaft. Upon another arm of the lever 44 is formed a contactplate 46 arranged to engage between the flanges of the bobbin and toContact with the thread as it is wound on the bobbin. The position oft-he lever 44 is controlled by means of' a spring 48 connected at oneend with an arm 50- secured to the rock shaft 36 and at the other endwith a pin 51 secured in the frame of the machine. The spring 48 islarranged so that it will act on the lever 44 to maintain the contactplate 46 in engagement with the thread and the roll 42 out of positionto engage the cam flange 40 during the greater part of the windingoperation, or when the bobbin contains less than a predetermined amountof thread, and that when a predetermined amount o-f thread has beenwound on the bobbin it will swing the lever tol carry the roll 42 intoposition to engage the cam flange. To this end the pin 51, the arm 50and the lever 44 are relatively arranged so that when the contact plate46 is swung down into position to engage the thread at the beginning ofthe winding operation, the central line of the spring is `located abo-vethe axis of the rock shaft 36, and that the central line of the springis carried below the axis of the rock shaft by the movement of the lever44 produced by the engagement of the thread with the plate 46 as thethread is wound lon the bobbing.

With this construction the spring 48 when the plate 46 is swung intoacting position at the beginning of the winding operation will tend toturn the rock shaft 36 and to swing the lever 44 in a. direction tomaintain the contact plate 46 in yielding engagement with the thread. Asthe amount of thread upon the bobbin increases, the outward movement ofthe plate 46 produced by the engagement of the thread therewith willgradually swing the lever44 against the tension exerted by the springuntil the central line of the` spring is carried below the axis of therock shaft 36, Vhen this occurs the spring will `act to swing the lever44 in a direction to carry the roll 42 upwardly into position to engagethe cam flange 40, and through the engagement of the cam incline on thecam flange with the roll the driven disk 6 will be moved to the left outof engagement with the driving pulley 14. Afterv being disengaged fromthe driving pulley 14 the driven disk 6 is held in its outer position bythe engagement of the roll 42 with the lateral face of the cam liange40.

Having explained the nature and object of the invention, and havingspeoiiically described a machine embodying the invention in itspreferred form, what is claimed is:

1. A bobbin winding machine having, in combination, a rotary drivingmember, a 1'0- taryv driven member movable axially into and out ofdriving contact with the driving member, a bobbin supporting spindleconnected with the driven member, a cam secured to the driven member torotate therewith, an abutmentarranged to engage the cam and cause thecam by its rotation to move the driven member axially out of contactwith the driving member and movable into and out of the path of the cam,and means controlled from the thread wound on the bobbin for controllingthe position of the abutment.

2. A bobbin winding machine having, in combination, a rotary drivingmember, a rotary driven member mounted to rotate coaxially with thedriving member and movable axially into and out of driving contact withthe driving member, a bobbin supporting spindle'oonnected with thedriven member, means for yieldingly holding the driven member in drivingContact with the driving member, a cam secured tothe driven member torotate therewith, an abutment arranged to engage the cam and cause thecam by its rotation to move the driven member axially out of Contactwith the driving member and movable into and out of the path of the cam,and means controlled from the thread wound on the bobbin for controllingthe p0- sition of the abutment.

3. A bobbin winding machine having, in combination, a rotary drivingmember, a longitudinally movable shaft extending centrally through thedriving member, a rotary driven member mounted on the shaft, a bobbinsupporting spindle secured to the driven member, means for holding thedriven member yieldingly in driving contact with the driving member, acam secured to the driven member to rotate therewith, an abutmentarranged to engage the cam and'cause the cam by its rotation to move thedriven member axially out of contact with the driving member movableinto and outof the path ci' the cam, and means controlled from thethread wound on the bobbin for controlling the position of the abutment.g

1 4. A bobbin winding Amachine having, in combination, a rotary drivingmember, a rotary driven member movable axially into and out of drivingcontact with the driving member, means Jfor holding the driven memberyieldingly in driving contact with the driving member, a cam secured tothe driven member to rotate therewith, a lever, an abutment carried bythe lever arranged to engage the cam and cause the cam by its rotationto move the driven member out of con tact with the driving` member' andto be carried into and out or' the path of the cam by the swingingmovement of the lever, and a contact plate carried by the lever forengaging the thread wound onV the bobbin.

5. A bobbin winding machine having, in combination, a frame, a bushingsecured in the frame,a driving pulley journaled on the bushing, a shaftjournaled in the bushing and ar `anged for longitudinal movementtherein, a driven member mounted on the shaft, a cam secured to thedriven member to rotate therewith, an abutment arranged to engage thecam and cause the cam by its rotation to move the driven member axiallyout of contact with the driving pulley and movable into and out the pathof the cam, and means controlled from the thread wound on the bobbin forcontrolling the position of the abutment.

6. A bobbin winding machine having, in combination, rotary driving anddriven members, a bobbin supporting spindle con nected with the drivenmember, a movable arm, a spring connected to said arm and acting in onedirection on said arm when the arm is on one side of a given position,and acting in the opposite direction on said arm when the arm is movedto the opposite side of said position, a device arranged to engage thethread wound on the bobbin and connections between said device and saidarm for moving said arm gradually from one side of said position to theother side thereof and devices controlled by said arm for disconnectingthe driving and driven members.

7. A bobbin winding machine having, in combination, rotary driving anddriven members, a bobbin supporting spindle connected with the drivenmember, a lever, a tension spring connected with said lever and locatedon one side of the axis thereof so as to tend to swing the same in onedirection when the lever is on one side of a given po sition, andarrangedtoxbe carried tothe driving anddriven members.

8. A bobbin winding machine having, in combination, a bobbin supportingspindle, means for driving the spindle, a lever for holding the bobbinon the spindle pivoted to swing in a plane containing the axis of thespindle, and also to swing independently of the spindle in al planesubstantially perpendicular to the axis of the spindle into and out ofacting position, a spring acting on said lever and tending to swing thesame in the first of said planes, and a rotary button carried by saidlever for engagement with the outer end of the bobbin.

9. A bobbin winding machine having, in combination, a rotary drivingmember, a rotary driven member mounted to rotate coaxially with thedriving member and moving axially into and out of contact with thedriving member, a bobbin supporting spindle secured to the drivenmember, a cam secured to the driven member to rotate therewith, a leverpivoted on an axis substantially parallel with the common a- Xis of thedriving and driven members, an abutment carriedby one arm of said leverarranged to engage the cam and cause the cam by its rotation to move thedriven member axially out ot' driving contact with the driving memberand to becarried into and out of the path of the cam by the swingingmovement of the lever, and a contact plate carried by another arm of thelever for engagement with the thread wound on the bobbin.

10. A bobbin winding machine having, in combination, a bobbin supportingspindle, a clutch for driving the spindle, a spring and mechanism actedupon by the spring to maintain the clutch yieldingly engaged and to holda bobbin in position on the spindle.

11. Abobbin winding machine having, in combination, a` driving clutchmember, an axially movable driven clutch member, abobbin supportingspindle secured to the driven clutch member, a device for 'engaging abobbin placed on the spindle and a spring acting on said device andtending to force the same in the direction of the axis of the spindle,to hold the bobbin on the spindle and to hold the driven clutch memberyieldingly in engagement with t-he driving clutch member.

l2. A bobbin winding machine having, in combination, a bobbin supportingspindle,

means for drivingthe spindle, and a lever for holding the bobbin on thespindle piv- -oted to swing in a plane containing the axis of thespindle, and also to swing independently of the spindle in a planesubstantially perpendicular to the axis of the spindle into and out ofacting position.

r13. 'A bobbin Winding machine having, in combination, a bobbinsupporting spindle, a driven member, a driving member, a rotating cam',mechanism actuated by the cam during its rotation to disconnect thedriving anddriven member, and `means contrOlled fromv the thread Woundon the bobbin for lrendering the cam operative.

14. A bobbin Winding machine having, in combination, a bobbin supportingspindle, a driving member, a driven member, a rotating cam, mechanismincluding an abutment arranged to engage the cam and cause the camduring its rotation to disconnect the driving and driven members, andmeans con t'rolled from the thread Wound on the bobbin for controllingthe position of thek abutment.

FRED ASH'WORTH.

